1、BRITISH STANDARD AEROSPACE SERIES BS EN 2591-322:1998 Elements of electrical and optical connection Test methods Part 322: Hermeticity The European Standard EN2591-322:1998 has the status of a British Standard ICS 49.060BSEN 2591-322:1998 This British Standard, having been prepared under the directi
2、onof the Engineering SectorBoard, was published underthe authority of the Standards Board and comes intoeffect on 15August1998 BSI 04-1999 ISBN 0 580 30307 1 National foreword This British Standard is the English language version of EN2591-322:1998. The UK participation in its preparation was entrus
3、ted by Technical Committee ACE/6, Aerospace avionic, electrical and fibre optic technology, to Subcommittee ACE/6/3, Aerospace Connectors, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpret
4、ation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards whic
5、h implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does no
6、t purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside f
7、ront cover, pages i and ii, theEN title page, pages2 and3 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date Comment
8、sBSEN 2591-322:1998 BSI 04-1999 i Contents Page National foreword Inside front cover Foreword 2 Text of EN 2591-322 3ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2591-322 June 1998 ICS 49.060.00 Descriptors: Aircraft industry, aircraft equipment, connecting equipment, test English ve
9、rsion Aerospace series Elements of electrical and optical connection Test methods Part 322: Hermeticity Srie arospatiale Organes de connexion lectrique et optique Mthodes dessais Partie 322: Hermticit Luft- und Raumfahrt Elektrische und optische Verbindungselemente Prfverfahren Teil 322: Hermetische
10、 Dichtheit This European Standard was approved by CEN on22 June1997. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographic
11、al references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN m
12、ember into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Por
13、tugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide
14、for CEN national Members. Ref. No. EN 2591-322:1998 EEN 2591-322:1998 BSI 04-1999 2 Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After inquiries and votes carried out in accordance with the rules of this Association, this Standard
15、has received the approval of the National Associations and the Official Services of the member countries of AECMA, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by
16、 December1998, and conflicting national standards shall be withdrawn at the latest by December1998. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, CzechRepublic, Denma
17、rk, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Preparation of specimens 3 4 Method 3EN 2591-322:1998 BSI 04-1999 3 1 Scope This
18、standard specifies a method of verifying the hermeticity between: housing (shell) and insert insert and contacts of elements of connection exposed to a gas pressure difference. It shall be used together with EN2591. 2 Normative references This European Standard incorporates by dated or undated refer
19、ence provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporat
20、ed in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 2591, Aerospace series Elements of electrical and optical connection Test methods General. 3 Preparation of specimens 3.1 Specimens shall be prepared according to the technical spe
21、cification. The receptacle shall be mounted on a test setup so designed that the differential pressure may be applied to either face. 3.2 Unless specified in the technical specification, the following details shall be stated: specimens unwired or wired; type of cable and definition of the specimen w
22、iring (if applicable); test on one or two faces; requirement. 4 Method 4.1 Procedure A differential pressure of0,1 MPa shall be applied between the faces of the specimens in one direction or successively in both directions as specified. The leakage rate shall be measured with a mass spectrometer usi
23、ng tracer gas (helium). If both specimen faces have parts which may absorb helium, it is necessary to ensure, after testing one face, that absorption has been sufficiently neutralized before testing the other face. If only one face has helium-absorbing parts, this face shall be tested last. It is ne
24、cessary to ensure that any leakage at the receptacle mounting junction is not taken into account in the measurements. 4.2 Requirement The measured leakage rate shall not exceed 0,36 mm 3 /h unless otherwise specified.BS EN 2591-322:1998 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsIns
25、titution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards sho
26、uld make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this BritishStandard would inform the Secretary of the technical committ
27、ee responsible, the identity of which can be found on the inside front cover. Tel:02089969000. Fax:02089967400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, in
28、ternational and foreign standards publications should be addressed to Customer Services. Tel:02089969001. Fax:02089967001. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as BritishStandards, unless otherwise requ
29、ested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and servic
30、es. Contact the Information Centre. Tel:02089967111. Fax:02089967048. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel:020899
31、67002. Fax:02089967001. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the internationalstandardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retri
32、eval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designatio
33、ns. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel:02089967070.
